the slider crank mechanism shown in Fig. 2-29, the crank is rotating at 200 rpm. Determine the velocity and acceleration of the crosshead when theta = 3

For the inverted slider-crank linkage in the posture shown, crank 2 has a constant angular velocity of 160 rev/min ccw. Find the velocity and acceleration of point B, and the angular velocity and acceleration of link 4. R0402 = 12in, Rao₂ = 7in, and RBO₂ = 28in. B 15° @2 4

A variable torque is applied to a rotating wheel at time t = 0 and causes the clockwise angular acceler- ation to increase linearly with the clockwise angular displacement 0 of the wheel during the next 30 revo- lutions. When the wheel has turned the additional 30 revolutions, its angular velocity is 90 rad/s. Deter- mine its angular velocity wo at the start of the inter- val at t = 0.

1. At the time the crank AC is at 30° the collar is 6" from point A and crank BC is horizontal. The crank AC is rotating at 3 rad/s counter clockwise. The collar C is free to slide on the frictionless crank AC. What is the total acceleration of point C? 3" В A

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The elements of a power hacksaw are shown in Figure 2. The saw blade ismounted in a frame that slides along the horizontal guide. If the motor turns the flywheel at a constant counter-clockwise speed of 60 r.p.m. Make use of vector diagram to calculate: the acceleration of the blade for the position where angle ? = 90o The corresponding angular acceleration of the link AB.

The dimension and configuration of a four-bar mechanism is shown below. The crank P1A has an angular velocity of 10 rad/s and angular acceleration of 30 rad/s both clockwise. Determine the angular velocity of P2B. 00 mm 300 mm 8 rad/s (anticlockwise) 6.1 rad/s (clockwise) 1.9 rad/s (clockwise) 9 rad/s (clockwise)

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Bar OC rotates with a clockwise angular velocity woc = 5.3 rad/s and a counterclockwise angular acceleration doc = 4.6 rad/s². The bar OC is a slotted member which accommodates the pin A attached to the sector. Determine the angular velocity w and the angular acceleration a of the sector. The angular velocity and the angular acceleration are positive if counterclockwise, negative if clockwise. Assume OA = 500 mm, d = 385 mm, 0 = 21°. Answers: W = B a = i i d aoc rad/s rad/s² @oc